Renderers should obtain browser InterfaceProvider by connecting to browser

android_webview/browser/aw_content_browser_client.h

Index: android_webview/browser/aw_content_browser_client.h
diff --git a/android_webview/browser/aw_content_browser_client.h b/android_webview/browser/aw_content_browser_client.h
index cdd9b60197de7ef92949c9c9e1f7055ffbcb4b07..86d79eeaa1ea366b87d25f024313d243ebb63497 100644
--- a/android_webview/browser/aw_content_browser_client.h
+++ b/android_webview/browser/aw_content_browser_client.h
@@ -30,6 +30,10 @@ class AwContentBrowserClient : public content::ContentBrowserClient {
   AwContentBrowserClient(JniDependencyFactory* native_factory);
   ~AwContentBrowserClient() override;
 
+  // Allows AwBrowserMainParts to initialize a BrowserContext at the right
+  // moment during startup. AwContentBrowserClient owns the result.
+  AwBrowserContext* InitBrowserContext();
+
   // Overriden methods from ContentBrowserClient.
   void AddCertificate(net::CertificateMimeType cert_type,
                       const void* cert_data,